Omega Products ER25 Collet Standard Precision - 10 Micron Run-Out - 20mm - 19.8mm

Omega’s ER25 Collet, Standard Precision, is engineered for dependable, repeatable toolholding in everyday machining. With a tight 10 micron run-out, this collet keeps tools aligned to the workpiece path, delivering consistent tolerances, cleaner holes, and a smoother surface finish across every pass.

Why this ER25 Collet stands out

• Ultra-low run-out: 10 micron run-out keeps cutting forces aligned with the spindle, reducing deflection and improving accuracy on precision milling, drilling, and engraving tasks.
• Standard precision, reliable grip: Built for consistent clamping in ER25 chucks, delivering repeatable results over many tool changes in busy shop environments.
• Compact, purpose-built dimensions: designed for a 20mm capacity, with a seating reference around 19.8mm—helping you achieve a predictable setup and repeatable performance.
• Versatile toolholding: ideal for round tools used in metalworking and general machining, including end mills and drills that fit the ER25 format.

What to expect in your workflow

• Sharper hole quality and smoother finishes thanks to precise tool alignment and reduced run-out.
• Faster setups with consistent seating, so you can move quickly from job to job without rechecking alignment.
• Enhanced cutter life and repeatable results across multiple passes and materials, from aluminum to steel.

Tips for optimal use

1. Keep mating surfaces clean and free of debris before inserting the collet into the ER25 chuck to preserve concentricity.
2. Use appropriate tightening procedures to avoid misalignment—excessive force can disturb the seating accuracy.
3. Periodically verify run-out with a suitable gauge or test piece to ensure you’re maintaining the expected tolerance.